Patents by Inventor Reuben Mark

Reuben Mark has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4403623
    Abstract: A dental hygiene device for toothbrushing and gum massage comprises an elongated handle on which a bristle carrying head is pivotable for movement between a first operating position in alignment with the length of the handle and a second operating position at right angles to the length of said handle, there being a rib and groove arrangement for locking the head in either of those positions during normal toothbrushing and/or gum massaging operations but being readily responsive to torque applied by a user to turn the head from one position to another. The head has a central area of tooth engaging hard bristles, with areas of softer bristles at the ends for effective gum massaging.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: September 13, 1983
    Assignee: Colgate-Palmolive Company
    Inventor: Reuben Mark